Cynthia Nixon and Partner Christine Marinoni Welcome BabyCynthia Nixon and her partner of seven years, Christine Marinoni, have welcomed a baby boy, PEOPLE reports.

Marinoni, an education activist who began dating the 'Sex and the City' actress in 2004, gave birth to son Max Ellington Nixon-Marinoni on Monday. The couple announced their engagement in 2009.

Marinoni's rep says of the new mom, "Christine and baby are doing great."

Nixon, who has two children with former partner Danny Mozes, told The Advocate of her bride-to-be, "I feel like Christine is so amazing with our kids -- because they're our kids. I feel like falling in love with her is part of being amazed at how she makes our family so much better."